I agree. You dont get him back. The reason people date is to find out who and what they like in another person. You may have found what YOU like... but he didnt. I am not trying to be mean... but that is how it works. Be on your own for awhile.... get over the ex, then find someone else. Keep looking til you find the right guy for you that thinks you are the right girl for him. Good luck to you.
If you really like him they don't give up. There's always a way for something. Yes there right maybe he just didn't see anything he liked in you. But maybe he didn't. Why did he break up with you in the first place?